Christmas is also known as Christmas, translated as “Christian Mass”, which originated from the ancient Romans to celebrate the New Year’s Saturnalia, and has nothing to do with Christianity.
After Christianity prevailed in the Roman Empire, the Holy See gradually circulated this folk festival into the Christian system while celebrating the birth of Jesus. But on Christmas Day, it was not the birth of Jesus. It was the result of Christian absorption of ancient Roman mythology.
Most Catholic churches will hold the Midnight Mass on Christmas Eve on December 24th, the early morning of December 25th. Christmas is also a public holiday in the Western world and many other areas.